Steam-boiler.



- PATENTED JULYJI'I, 1906; J, B. MOWRY.

'STEAM BOILER.

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Joseph BMowry.

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N0- 826,519. PATBNTED-JULY 17, 1906. J. B. MOWRY.

STEAM BOILER. 4

AIPPLIOATIOH FILED AUG. 23. 1905.

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THE NORRIS rrrrns 520., WASHINGTON, lz'c.

*No. 826,519. FATENTED JULY 17, 1906.

- J.-B. MOWRY.

STEAM BOILER.

APPLICATION TILED AUG. 23. 1905.

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J. B. MOWRY.

STEAM BOILER. APPLICATION FILED melzs, 19oa.

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UNITED STATES PATENT omen JOSEPH B. MOWRY, OF CLEVELAND, OHIO, ASSIGNOROF ONE-EIGHTH TO EDWARD LINDMUELLER, OF CLEVELAND, OHIO.

STEAM-BOILER.

To all whom it may concern.-

Be it known that I, JOSEPH B. MOWRY, a citizen of the United States,residing at Cleveland, in the county of Ouyahoga and State of Ohio, haveinvented certain new and useful Improvements in Steam-Boilers; and

I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in steam-boilers.

It has for its object, among others, to pro vide a construction whichcan be more easily and quickly erected, cleaned, and repaired than thosenow in use and which is capable of quickly getting up steam With theconsumption of comparatively little fuel.

The invention consists of the features of construction and combinationsof parts hereinafter described, and more particularly pointed out in theclaims concluding this specification.

In the accompanying drawings, illustrating the preferred embodiment ofmy invention, Figure 1 is aside elevation of myboiler. Fig. 2 is acentral vertical sectional view taken longitudinally of the fire-boxes.Fig. 3 is a vertical sectional view taken at right angles to Fig. 2.Fig. 4 is an elevation looking in the end of one of the fire-boxes, theend of said fire-box being broken away; andFig. 5 is a cross-sectionalview on theline 0c :20 of Fig. 2.

While the preferred embodiment of my invention is illustrated in theaccompanying drawings and its construction and operation are describedin this specification, the right is reserved to make such changes fromthe construction shown and described herein as the scope of the claimshereto appended will permit.

Referring more particularly to the draw ings, I build the boiler over apit 1 upon brick foundations 2. The fire boxes 3 are arranged at eitherside of the pit opposite one another. The pit and body of the boiler arecircular in form, while the oppositely-proj ecting fire-boxes make thebase rectangular in form. The upper portion of the fire-boxes above thebrickwork, which extends about half-way up above the grates 4, and thetops Specification of Letters Patent.

Application filed August 23, 1905. Serial No. 275,432.

Patented July 17, 1906 dric water-wall 6 is made in two semicircularsections, the vertical edges of which are formed as just described anddrawn together and secured by the requisite number of clamps 8. To thetop of the vertical waterwall is secured the funnel-shaped cap 9, leading to the chimney.

Within the foundation-wall between the fire-boxes and above the pit isarranged a plate 10 about on alevel with the grates. An-

other plate 11 is arranged above the plate 10 about on a level with thetop of the brick walls of the fire-boxes and the bottom of thewaterwalls 5. Bridge-walls 12 are built across between each fire-box andthe edge of the plate 11 to protect it from the fires. The steam-dome 13is arranged centrally of the upper portion of the boiler, preferablyextending above the water-wall and set away from said water-wall toleave a passage for the smoke from the fires. The bottom plate 14 ofsaid dome and the plate 11 are both perforated, the perforations beingarranged in concentric circles and those in the upper plates registeringwith those in the lower one. Between the perforations are ar rangedpipes 15. Another row of pipes 16 extend from the plate 11 upwardoutside the dome and enter said dome through its sides, as at 16", belowthe level of the water therein, which fills the tubes or pipes and thespace or chamber formed between the plates 10 and 11, as well as thewater-walls. One of the outer row of pipes 16 extends upward through thecap of the boiler and has con nection, as at 17, with the dome below thewater-level and at 18 above the level of the water, whereby the steam iscarried off. A pipe 19 connects the upper portion of one part of theupright water-wall with said steam-pipe, so as to carry off any steamthat accumulates in the upper part of said wall above the water-level. Asimilar pipe 20 connects the upper part of the other section of thewater-wall with the steam-dome. In order to insure the free circulationof the water from the water-walls 5 around the fireboxes to the dome andinner tubes, a pipe 21 extends from the top' of each fire box throughthe upright water-walls 6 and opens on the dome below the water-level.The sides of said water-walls 5 around the fireboxes are also connectedwith the chamber between the plates 10 and 11 by pipes 21. Said plate 10is provided with hand-holes covered by plates 23, whereby the tubes orpipes extending from the plate 11 to the dome may be drawn down. intothe pit below the boiler for repairing or replacing. A handhole 24 isalso arrang 'd in the top of the steam-dome to provide for cleaning thesame. The advantage in making the upright water-wall in two sections isto facilitate the erection and repairing of the boiler. By means of myconstruction it is not necessary for a man to get inside to erect orrepair the 'boiler; but all the riveting, 620., can be done from theoutside, with a large saving of time and expense. The construction ofthe pit below also facilitates the work of repairing the tubes, as theymay be drawn down into said pit instead of having to tear the top oilthe boiler and taking said tubes out at the top. By the use of the metalwater-walls as a casing for the boiler instead of masonry I am enabledto get up steam in a much shorter time with a saving in fuel. The heatin my boiler will commence to act upon the water at once, whereas in theold form of brick boxes a great deal of heat is wasted in heating thepile of bricks. Another disadvantage of the brick boxes is that they arecontinually cracking and falling down.

As shown in Fig. 3, I may employ a steamblower for cleaning the soot outof the interior of the boiler. Said blower comprises an adjustable pinor rod 24, carrying a ball or spreader 25 at its end and mounted in apipe 26, entering through the center of the late 10. The handle 27'onthe lower end 0' said pin may be turned to control the flow of the steamthrough said pipe 26 past the spreader. The steam is normally cut 0Hfrom said pipe entirely by a valve (not shown) arranged outside theboiler.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A boiler comprising a casing formed of awater-wall, a steam-domearranged near the top, and a water-chamber near the bottom, within saidcasing pipes connecting said dome and chamber, a fire-box communicatingwith said casing, a waterjack'et extending across the top and partiallydown the sides of said fire-box, pipes forming direct connection betweensaid water-jacket and the dome and water-chamber and pipes for conveyingsteam from the upper portion of the water-wall to the steam-dome.

2. A boiler comprising a casing formed of a water-wall, a steam-domearranged near the top, Within, and spaced away from the sides of saidcasing, a fire-box having communication with said casing, awater-chamber extending across near the bottom of said casing below thepassage from the fire-box to the casing, pipes connecting said chamberwith the bottom of said dome, other pipes connecting said chamber withthe sides of said dome, and a fire-box having communication with saidcasing, the products of combustion being forced to pass among said pipesand up around said dome to an outlet above it.

3. A boiler comprising a casing formed of a water-wall, a steam-domearranged near the top, within, and spaced awayfrom the sides of saidcasing, a water-chamber arranged near the bottom of said casing, pi esconnecting said chamber and dome, a e-box having communication with saidcasing, a waterjacket extending across the top and partially down thesides of said fire-box, and pipes forming direct connection between saiwaterjacket and the dome and water-chamber, the products of combustionbeing forced to pass among the pipes connecting the water-chamber anddome and up around said dome to an outlet above it.

4. Aboiler cmprising a casing formed of awaterwall, a steam-domearranged near the top, within, and spaced away from, the sides of saidcasing, awater-chamb or arranged near the bottom of said casing, pipesconnecting said chamber with the bottom of said dome, other pipesconnecting said chamber with the sides of said dome, one of said latterpipes extending up through the to of the casing for carrying off thesteam, sai pipe having communication with said dome, abovethe'waterlevel, and with the up er portion of the waterwall, and afire-box aving communication with said casing.

5. A boiler comprising a cylindric casing formed of two uprightsemicircular sections of water-wall, connected at the edges, asteamd'ome arranged near the top, and a Waterohamber near the bottom, ofsaid casing, pipes connecting said water-chamber and dome, a fire-boxarranged opposite each section of said water-wall, and a water-j acketaround the upper portion of each of said fire-boxes, each of saidwater-jackets having communication with one of said sections ofwater-wall and with said steam-dome and water-chamber direct.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH B. MOWRY.

Witnesses:

M. MILLARD, JOHN N. WILsON.

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